North Macedonia was the last country to join North Atlantic Treaty Organization. Formally known as Yugoslav Republic, it officially became a NATO member on 27 March 2022. After declaring independence from Yugoslavia in 1991, the country chose the name Macedonia. However, after much dispute with Greece, which also has a region called Macedonia, the new name was agreed upon after talks with the EU.
NATO is an organization of collective defence. It is a security alliance of 30 countries from North America and Europe. Its purpose is to create a special connection between these two continents, allowing them to consult, work together on security and defence issues, and coordinate international crisis management activities.